Bruce Clarke is a retired Army Colonel with extensive strategic, operational and tactical experience. He is widely published on a myriad of strategic and operational subjects. Immediately prior to his retirement from the Army, Colonel Clarke was the Director of US National Security Studies at the US Army War College in Carlisle, Pennsylvania where he held the General Dwight D. Eisenhower Chair in National Security. He taught strategy and the operational level of war. Before that he commanded a 6,000 man armored brigade in the 1st Infantry Division at Fort Riley, Kansas. Colonel Clarke also served in the State Department during the Reagan Administration as a senior military officer in arms control negotiations with the Soviet Union. In the early 1980s, Colonel Clarke commanded a 1,000 man armored cavalry squadron in West Germany. He is a Vietnam veteran and the author of "Expendable Warriors: The Battle of Khe Sanh and the Vietnam War".